Mitchell, P., & Kirby, K. (1989). Ecological effects of forestry practices in long-established woodland and their implications for nature conservation. Oxford Forestry Institute, University of Oxford.

Mitchell, P., and K. Kirby. Ecological Effects of Forestry Practices in Long-established Woodland and Their Implications for Nature Conservation. Oxford Forestry Institute, University of Oxford, 1989.

Mitchell, P., and K. Kirby. Ecological Effects of Forestry Practices in Long-established Woodland and Their Implications for Nature Conservation. Oxford Forestry Institute, University of Oxford, 1989.